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Why do you use cadmium sulphate in light dependent resistors instead of silicon?
Wiki User
∙ 14y ago
Cadmium sulphide (CdS) has been used since before bulk silicon was available. Besides Silicon is used as a semiconductor for making electronic transistors. Resistors have to be put on it. Cadmium Sulfide is cheap and works fine.
Wiki User
∙ 14y ago
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Why can't you evaporate copper sulphate solution to separate copper sulphate crystals?
It is because the copper suphate chloride has a pH of 2334. This means crystals cannot be formed but instead hydrochloric methanical acid is formed. hydrochloric methanical acid is VERY harmful to us so kids: DON'T TRY THIS EXPERIMENT AT HOME!!thank you,love from Mr Smelma Pits
Why sulfuric acid is used in Redox titration instead of HCl?
Because sulphuric acid is non volatile and its sulphate ion is not interfering during the titration process while HCl is a volatile substance and its chloride ion interfere in the reaction as a reducing agent.
What is the relationship between viscosity and refractive index?
refractive index is equals to squarroot of relative permitivity
What is the condensed electron configuration of cadmium?
Cadmium has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10, commonly written in the shorthand as [Kr] 5s2 4d10. For students who have not learnt spdf notation, the configuration is normally written as 2, 8, 18, 18, 2. It has two valence electrons. The ion would have 8 instead of 10 as the last number.
Can nitric acid be used instead of sulfuric acid?
In some cases, it could be used but not always. For example, if an acid is required only for its H+, then it could be used but if you require a very strong oxidizing agent then you should use Nitric acid and if you require a dehydrating agent, then sulphuric acid would come in use.
Why is colour of copper sulphate blue?
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
What two ways can speed up the rate of dissolving copper sulphate in water?
1. Increase the temperature of the water. 2. Use copper sulphate in the finely powered form instead of copper sulphate crystals (if hydrated). 3. Stir.
Why are your blood cells red?
Your Blood cells contain Iron which is red there is a animal that uses copper sulphate instead of iron so that's why its blood is blue!
Why transformer is only used instead of any other device?
A transformer is the primary device which transforms voltage to a higher or lower voltage. In electronics, capacitors and resistors perform this function.
Is it harmful to use formocresol for root canal treatment?
It is generally not being used in the UK anymore certainly due to his carcinogenic properties. Ferric sulphate is now used instead.
Why are fixed resistors values indicated by colors?
Because the actual resistor is too small to print numbers, so color bands and math are used instead. I just don't know how to calculate the values.
Why you use BaSO4 reagent instead of BaCl2 solution in limit test of sulphate?
BaSO4 is insolubel AND it contains sulfate, the ion of which the absence or existance should be tested for. (This doesn't sound quite logic)
How can embedded the assembly language in c?
Compiler-dependent, in real life you should never do that, write separated Assembly modules instead.
What is mmeant by a controlled expirment?
Instead of changing something, independent variable, where it is likely to change the dependent variable, the control is kept the same.
Blower motor rsistor is hot what is causing this?
The resistors are there to give the blower different speeds. To get the blower to run a little slower part of the energy gets dumped into heating the resistor instead of spinning the blower blades.
What else can be used instead of silicon in the manufacturing of a solar cell?
Germanium, gallium, Tellurium with cadmium,carbon nano tube,graphene,single molecule acrylics polymer sheet.In theory version of an organic chemical like chlorophyll.
What is the independent and dependent variable in sex and violence?
If, by sex, you mean gender, then sex is the independent variable and violence is the dependent. If, instead, you mean the sexual act (or thoughts), then due to the feedback, the two are correlated variables: neither being independent.
